Figure 5
From: High-temperature continuous-wave laser realized in hollow microcavities

Numerical simulations of Whispering gallery type resonant modes formed in NNWs.
(a) Schematic diagram of the self-formed microcavity for optical characterization. (b) Schematic views of the approximate pentagon and hexagon, defined by interconnected nanowalls. (c, d) Simulated resonance patterns diagrams of the proposed pentagon and hexagon nanostructures, displaying that standing wave field distribution can be formed.